pub const DEFAULT_MAX_THINKING_BUDGET: u32 = 256;Expand description
Default [behavior].max_thinking_budget — the effort-ladder anchor E and
the budget for budgetless thinking-on requests. 256 is the historical
built-in every model inherited before MODEL.toml could override it.
Lifted here (2026-08-14, effort-ladder work) because it was three
hand-synced literals (lib.rs default, build-parse default, build-parse
unwrap_or) — the exact drift shape that shipped #328’s 384-vs-3072 bug.